Calls NASA's EONET Webservice and returns all categories available.
Usage
eonet_categories()
Arguments
Details
Returns data.frame with 5 columns
@field id Unique id (can be used to filter earth_event)
@field title Title of category
@field link Direct json link (the result is equal to filtering all earth_event with category)
@field description Description of category
@field layers Layers of category (see oficial documentation)